160
FNCA52 TJSJ 170853
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
453 AM AST TUE FEB 17 2026
DISCUSSION
LIGHT SOUTHEASTERLY WINDS WILL CONTINUE TODAY. RELATIVE
HUMIDITIES COULD DROP BELOW THRESHOLD VALUES, HOWEVER, SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS COULD MOVE OVER THE SOUTHERN
COASTAL PLAINS LATER THIS AFTERNOON RESULTING IN BRIEF DRY
RELATIVE HUMIDITIES PRIOR THIS ACTIVITY. ADDITIONALLY, SATURATED
SOILS FROM RAINS IN PREVIOUS DAYS CONTINUE DIMINISHING THE EFFECTS
OF FUELS IN THE AREA. THEREFORE, THE FIRE WEATHER RISK SHOULD
REMAIN LOW TODAY.
PRZ014-180900-
SOUTHEAST COASTAL PLAINS-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20
TEMP (24H TREND) 87 (+3) 67 (-3) 87
RH % (24H TREND) 48 (-11) 93 (+4) 49
WIND 20FT/EARLY(MPH) SE 10 NE 8 E 14 G23
WIND 20FT/LATE(MPH) SE 10 NE 8 E 14 G23
MIXING HGT(FT-AGL/MSL)4580 5210
TRANSPORT WND (MPH) E 10 E 13
VENT RATE (KT-FT) 41220 57310
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-180900-
SOUTHERN HILLS-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 0 30
TEMP (24H TREND) 83 (+4) 64 (-4) 83
RH % (24H TREND) 60 (-11) 98 (+5) 61
WIND 20FT/EARLY(MPH) SE 9 NE 5 E 12
WIND 20FT/LATE(MPH) SE 9 NE 5 E 12
MIXING HGT(FT-AGL/MSL)5400 5790
TRANSPORT WND (MPH) E 8 E 10
VENT RATE (KT-FT) 37800 52110
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-180900-
NORTH COASTAL PLAINS-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 86 (+1) 68 (-1) 85
RH % (24H TREND) 60 (-6) 99 (+1) 62
WIND 20FT/EARLY(MPH) NE 10 E 9 E 14 G17
WIND 20FT/LATE(MPH) NE 10 E 9 E 14 G17
MIXING HGT(FT-AGL/MSL)4670 4640
TRANSPORT WND (MPH) E 6 E 13
VENT RATE (KT-FT) 23350 51040
DISPERSION 5 5
DSI 5 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-180900-
NORTHERN HILLS-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 0 20
TEMP (24H TREND) 84 (+1) 65 (-2) 85
RH % (24H TREND) 61 (-5) 100 (+4) 62
WIND 20FT/EARLY(MPH) NE 9 E 8 NE 12
WIND 20FT/LATE(MPH) NE 9 E 8 NE 12
MIXING HGT(FT-AGL/MSL)5300 5420
TRANSPORT WND (MPH) SE 3 E 10
VENT RATE (KT-FT) 15900 48780
DISPERSION 5 5
DSI 5 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-180900-
WEST COAST-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 40
TEMP (24H TREND) 86 (+1) 66 (-3) 87
RH % (24H TREND) 60 (-6) 99 (+6) 58
WIND 20FT/EARLY(MPH) NE 8 NE 10 SE 11
WIND 20FT/LATE(MPH) NE 8 NE 10 SE 11
MIXING HGT(FT-AGL/MSL)4610 4950
TRANSPORT WND (MPH) SE 5 E 8
VENT RATE (KT-FT) 18440 34650
DISPERSION 5 5
DSI 5 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-180900-
EASTERN INTERIOR-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 40
TEMP (24H TREND) 85 (+4) 65 (-3) 84
RH % (24H TREND) 61 (-8) 100 (+3) 65
WIND 20FT/EARLY(MPH) SE 9 E 8 E 10
WIND 20FT/LATE(MPH) SE 9 E 8 E 10
MIXING HGT(FT-AGL/MSL)6200 6020
TRANSPORT WND (MPH) SE 8 E 10
VENT RATE (KT-FT) 43400 54180
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-180900-
LUQUILLO MOUNTAIN RANGE-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40
TEMP (24H TREND) 80 (+3) 65 (-2) 79
RH % (24H TREND) 66 (-9) 99 (+1) 71
WIND 20FT/EARLY(MPH) SE 8 E 6 E 10
WIND 20FT/LATE(MPH) SE 8 E 6 E 10
MIXING HGT(FT-AGL/MSL)4450 4890
TRANSPORT WND (MPH) SE 9 E 12
VENT RATE (KT-FT) 35600 48900
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-180900-
CENTRAL MOUNTAIN RANGE-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS NONE SHOWERS
CHANCE PRECIP (%) 60 0 50
TEMP (24H TREND) 82 (+3) 62 (-3) 83
RH % (24H TREND) 63 (-7) 100 (+5) 62
WIND 20FT/EARLY(MPH) E 6 E 8 E 9
WIND 20FT/LATE(MPH) E 6 E 8 E 9
MIXING HGT(FT-AGL/MSL)6200 6740
TRANSPORT WND (MPH) E 3 E 7
VENT RATE (KT-FT) 18600 40440
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-180900-
CAYEY MOUNTAIN RANGE-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30
TEMP (24H TREND) 80 (+3) 65 (-2) 79
RH % (24H TREND) 64 (-10) 100 (+1) 69
WIND 20FT/EARLY(MPH) SE 8 E 5 E 10
WIND 20FT/LATE(MPH) SE 8 E 5 E 10
MIXING HGT(FT-AGL/MSL)5380 5650
TRANSPORT WND (MPH) E 8 E 13
VENT RATE (KT-FT) 37660 62150
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-180900-
VIEQUES-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40
TEMP (24H TREND) 85 (0) 70 (-3) 85
RH % (24H TREND) 58 (-3) 94 (+5) 60
WIND 20FT/EARLY(MPH) SE 10 E 9 E 11
WIND 20FT/LATE(MPH) SE 10 E 9 E 11
MIXING HGT(FT-AGL/MSL)3250 3270
TRANSPORT WND (MPH) E 13 E 14
VENT RATE (KT-FT) 35750 39240
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-180900-
CULEBRA-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 40
TEMP (24H TREND) 85 (0) 73 (-2) 85
RH % (24H TREND) 59 (-5) 93 (+7) 62
WIND 20FT/EARLY(MPH) SE 11 E 9 E 11
WIND 20FT/LATE(MPH) SE 11 E 9 E 11
MIXING HGT(FT-AGL/MSL)3210 3280
TRANSPORT WND (MPH) SE 10 E 14
VENT RATE (KT-FT) 28890 39360
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-180900-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 50 0 30
TEMP (24H TREND) 88 (+3) 67 (-4) 88
RH % (24H TREND) 47 (-10) 94 (+10) 46
WIND 20FT/EARLY(MPH) SE 11 NE 10 E 14 G22
WIND 20FT/LATE(MPH) SE 11 NE 10 E 14 G22
MIXING HGT(FT-AGL/MSL)4810 5000
TRANSPORT WND (MPH) E 10 E 10
VENT RATE (KT-FT) 43290 45000
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-180900-
SAINT THOMAS AND SAINT JOHN-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 30
TEMP (24H TREND) 85 (+1) 71 (-4) 85
RH % (24H TREND) 58 (-6) 94 (+8) 59
WIND 20FT/EARLY(MPH) SE 12 E 10 E 12
WIND 20FT/LATE(MPH) SE 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)3340 3360
TRANSPORT WND (MPH) SE 9 E 15
VENT RATE (KT-FT) 26720 43680
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-180900-
ST CROIX-
453 AM AST TUE FEB 17 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 50 40
TEMP (24H TREND) 86 (+1) 72 (-2) 86
RH % (24H TREND) 59 (-4) 95 (+7) 59
WIND 20FT/EARLY(MPH) E 11 E 9 E 12
WIND 20FT/LATE(MPH) E 11 E 9 E 12
MIXING HGT(FT-AGL/MSL)4440 4550
TRANSPORT WND (MPH) SE 14 E 16
VENT RATE (KT-FT) 53280 63700
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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